Supramolecular organization in copper(I) isocyanide complexes: copper(I) liquid crystals from a simple molecular structure

Mohamed Benouazzane; Silverio Coco; Pablo Espinet; Joaquín Barberá

doi:10.1039/B100548K

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Mohamed Benouazzane,^a Silverio Coco,^a Pablo Espinet*^a and Joaquín Barberá^b

Author affiliations

* Corresponding authors

^a Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Valladolid, Spain
E-mail: espinet@qi.uva.es

^b Departamento de Química Orgánica, Facultad de Ciencias-ICMA, Universidad de Zaragoza-CSIC, Zaragoza, Spain

Abstract

The synthesis, characterization and mesomorphic properties of five series of copper(I) isocyanide complexes [CuCl(CNR)] [R = C₆H₄C₆H₄OC_nH_2n + 1 (L^A), C₆H₄OOCC₆H₄OC_nH_2n + 1 (L^B), C₆H₄COOC₆H₄OC_nH_2n + 1 (L^C), C₆H₃{3,4-(OC_nH_2n + 1)₂} (L^D), C₆H₂{3,4,5-(OC_nH_2n + 1)₃} (L^E); n = 4, 6, 8, 10, 12] are described. Although some of the free isocyanides used are not liquid crystals, all the copper isocyanide complexes prepared, except four, are mesogens. The copper derivatives Cu–L^A show smectic A (S_A) and smectic C (S_C) mesophases, the complexes Cu–L^B and Cu–L^C display only S_A phases and the di- and tri-alkoxyphenylisocyanide copper complexes, Cu–L^D and Cu–L^E, display hexagonal columnar mesophases, some of them at room temperature.

These copper isocyanide complexes are compared with the similar gold(I) isocyanide complexes [AuClCNR] and the influence of the metallic atom on the mesogenic behaviour for representative complexes is discussed.

Graphical abstract: Supramolecular organization in copper(i) isocyanide complexes: copper(i) liquid crystals from a simple molecular structure

Download options Please wait...

Article information

DOI: https://doi.org/10.1039/B100548K
Article type: Paper
Submitted: 16 Jan 2001
Accepted: 21 Mar 2001
First published: 19 Apr 2001

Download Citation

J. Mater. Chem., 2001,11, 1740-1744

Permissions

Request permissions